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Google Earth Imageries for Validating Groundwater Recharge Zone in Basaltic region

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Title Google Earth Imageries for Validating Groundwater Recharge Zone in Basaltic region
Not Available
 
Creator Snehalata Chaware, Nitin Patil, Gajanan Satpute, Sanjay Apturkar, Anand Tingre, Chanchal Bante and Bhushan Deshkar
 
Subject Groundwater potential (GWP), defunct
 
Description Not Available
A majority of the existing groundwater potential studies in the
literature lack adequate validation. In developing countries, it is
attributed to many reasons including- poor/limited data on water
yield, sparse spatial and temporal data on wells, lack of data
protocol/sharing, a weak ground water governance structure such
as disparate agencies, lack of registration/georeferencing of
irrigation wells. A rapid, simple and replicable approach is
proposed to overcome these difficulties using Google Earth
imageries for visual interpretation, interwined with cadastral data
and telecommunication for a representative block located in basaltic
region of Maharashtra, India. Each of 1684 irrigation well in the
study area was enumerated, its irrigation area estimated and
verified through available records, field visits, telecommunication
with well owners and georeferenced to link with land parcel
identification number and build well information system.
Functional and defunct wells were distinguished using deacadel
timeline data. Nine major biophysical and environmental factors
namely geomorphology, soil, land use land cover, slope, lineament
density, drainage density, topographical wetness index, curvature
and aspect were analyzed to asses the groundwater recharge
potential (GWP). The GWP zones were verified using the
georeferenced enumeration data on wells, their density and area
irrigated per unit well. The number of wells, functional well density
followed an order high < moderate < moderate to poor < poor to
nil, i.e. highest density (0.034/ha) in high potential zone and lowest
density (0/ha) in poor to nil potential zone. Number of defunct
wells also exhibited linear correspondence with least share (51%)
in ‘high’ potential zone and higher share (76%) in ‘moderate to
poor’ potential zone. It is concluded that Google Earth imageries
provide direct and conclusive well enumeration, its irrigated area
and therby accurate means of evaluating GWP zonation. It has
immense potential for use in many countries where historical data
are inadequate to assist groundwater management/governance.
Not Available
 
Date 2024-07-01T11:07:23Z
2024-07-01T11:07:23Z
2020-10-01
 
Type Research Paper
 
Identifier Snehalata Chaware, Nitin Patil, Gajanan Satpute, Sanjay Apturkar, Anand Tingre, Chanchal Bante and Bhushan Deshkar
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/83832
 
Language English
 
Relation Not Available;
 
Publisher Not Available